/*  Copyright  2009
 *  @Author
 *  Richard Changde Yin            e-mail yinchangde@hotmail.com
 *
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; version 2 of the License.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
/**
 *  @filename: extract.h
 */ 
#ifndef COLLAPSAR_FUNCTION_TIME_EXTRACT_H
#define COLLAPSAR_FUNCTION_TIME_EXTRACT_H

#include <function/math/int.h>

class Item_extract :public Item_int_func
{
  String value;
  
  bool date_value;
 public:
 
  const interval_type int_type; // keep it public
  
  Item_extract(interval_type type_arg, Item *a)
    :Item_int_func(a), int_type(type_arg) {}
  int64_t val_int();
  
  enum Functype functype() const { return EXTRACT_FUNC; }
  
  const char *func_name() const { return "extract"; }
  
  void fix_length_and_dec();
  
  bool eq(const Item *item, bool binary_cmp) const;
  
  virtual void print(String *str, enum_query_type query_type);
};

#endif /* COLLAPSAR_FUNCTION_TIME_EXTRACT_H */
